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參數(shù)資料
| 型號(hào)： | TLE4729-G |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 2-Phase Stepper-Motor Driver Bipolar-IC |
| 中文描述： | 二相步進(jìn)電機(jī)驅(qū)動(dòng)雙極集成電路 |
| 文件頁數(shù)： | 3/27頁 |
| 文件大?。?/td> | 188K |
| 代理商： | TLE4729-G |
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TLE 4729 G
Data Sheet
3
2001-04-09
Pin Definitions and Functions
Pin
Function
1, 2, 23, 24
Digital control inputs
I
X0,
I
X1
for the magnitude of the current of the
particular phase.
I
set
= 450 mA with
R
sense
= 1
1)
“No current” in both bridges inhibits the circuit and current consumption will sink below
50
μ
A (inhibit-mode)
Input phase 1;
controls the current through phase winding 1.
On H-potential the phase current flows from Q11 to Q12, on L-potential
in the reverse direction.
Ground;
all pins are connected at leadframe internally.
3
5 … 8,
17 … 20
4
Oscillator;
works at approx. 25 kHz if this pin is wired to ground across
2.2 nF.
Resistor
R
1
for sensing the current in phase 1.
Push-pull outputs Q11, Q12
for phase 1 with integrated free-wheeling
diodes.
Supply voltage;
block to ground, as close as possible to the IC, with a
stable electrolytic capacitor of at least 47
μ
F in parallel with a ceramic
capacitor of 100 nF.
Error 2 output;
signals with “l(fā)ow” the errors: short circuit to ground of
one or more outputs or over-temperature.
Push-pull outputs Q22, Q21
for phase 2 with integrated free-wheeling
diodes.
Resistor
R
2
for sensing the current in phase 2.
Error 1 output;
signals with “l(fā)ow” the errors: open load or short circuit to
+
V
S
of one or more outputs or short circuit of the load or over-
temperature.
Input phase 2;
controls the current flow through phase winding 2. On
H-potential the phase current flows from Q21 to Q22, on L-potential in
the reverse direction.
10
9, 12
11
14
13, 16
15
21
22
I
X1
I
X0
L L
L H
H L
H H
Phase Current
0
0.155
×
I
set
I
set
1.55
×
I
set
Example of Motor Status
No current
1)
Hold
Normal mode
Accelerate
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